Summary
If you make $137,065,752 a year living in New Zealand, you will be taxed $53,437,756. That means that your net pay will be $83,627,996 per year, or $6,969,000 per month. Your average tax rate is 39.0% and your marginal tax rate is 39.0%. This marginal tax rate means that your immediate additional income will be taxed at this rate. For instance, an increase of $100 in your salary will be taxed $39, hence, your net pay will only increase by $61.
Bonus Example
A $1,000 bonus will generate an extra $610 of net incomes. A $5,000 bonus will generate an extra $3,050 of net incomes.